在 Android Kotlin 片段中删除 actionBar 的空间

Question

我使用片段进行底部导航。

我已经用父主题 Theme.MaterialComponents.NoActionBar.Bridge 定义了一个主题。

它在 activities 上运行良好，但 fragments 显示出差距。

这是BottomNavigationActivity

    override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

    firebaseAnalytics = FirebaseAnalytics.getInstance(this)
    val user = userFromIntent
    initGoogleSignInClient()

    binding = ActivityBottomNavigationMenuBinding.inflate(layoutInflater)
    setContentView(binding.root)

    val navView: BottomNavigationView = binding.navView

    val navController = findNavController(R.id.nav_host_fragment_activity_main)
    // Passing each menu ID as a set of Ids because each
    // menu should be considered as top level destinations.
    val appBarConfiguration = AppBarConfiguration(
        setOf(
            R.id.navigation_home, R.id.navigation_activities, R.id.navigation_more
        )
    )
    navView.setupWithNavController(navController)

}

摘自 MoreFragment。

    override fun onCreateView(
    inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
): View {
    fragmentMoreBinding = FragmentMoreBinding.inflate(inflater, container, false)

有什么想法吗？我尝试过类似的事情：

((AppCompatActivity) getActivity()).getSupportActionBar().hide();

Answer 1

删除了 XML 上的 android:paddingTop="?attr/actionBarSize 我有 nav_host_fragment_activity_main 并且它有效！